Use any hex editor apps that are available for android/iOS and change the value of HEX Dword to any amount you want.

Mito HEX 54 23 dd 23 DwordCash HEX 36 1b b3 ae Dword

If the codes doesn't work, it is possible that your android version is not compatible with the code I provided above.

Fortunately you can do it manually! To do it manually, just use search function in your hex editor app, enter your current Cash and Mito value in Drift City Mobile and search for it (choose DWORD) .

If you see a small list of results, example 10. Just edit the value of them one by one until you can find the real HEX!

If you see a large list of result, you need to change the value of your current Cash and Mito value in Drift City Mobile by either using/consuming or adding it. Go back to the list and find your new current Cash and Mito value in Drift City Mobile to the large list and you can now edit the value any amount you want.